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(NoJModeL) 3 Sheets-Sheet 1, 0. SAWYER & LAHUE. PROTECTOR STOP MECHANISM FOR LOOMS.

No. 603,860. Patented M ay 10,1898

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.. 3 Sheets-Sheet. 3. 0. A. SAWYER 8: M. MJLAHUE. PROTECT-0R STOP MECHANISM FOR LOOMS.

Patented May-10, 1898.

. f r! m 91 v 4 Ni 1m emhws UNITED STATES PATENT OFFICE.

ORREN A. SAWYER AND MOSES M. LAI-IUE, OF LOW ELL, MASSACHUSETTS; SAID SAWYER ASSIGNOR TO SAID LAHUE.

PROTECTOR STOP MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 603,860, dated May 10, 1898.

Application filed July 9, 1896. Serial No. 598,535. (No model.)

T0 at whom it may concern: Be it known that we, ORREN A. SAWYER and MOSES M. LAHUE,of Lowell, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Protector Stop Mechanism for Looms, of which the following, taken in connection with the accompanying drawings, is a specification. The form in which we prefer to embody our invention is that shown in the accompanying drawings, in which 1 Figure 1 is an end view of the lay part of a loom, so much only being shown as will explain our invention. Fig. 2 is a side view of the same. Fig. 3 is a detail side elevation, and Fig. 4 an end elevation, of the end protector-rod stand. Figs. 5 and'6 are respectively side and end elevations of the middle stand; and Figs. 7, 8, and 9 are respectively sections on the lines 10, as, and y of Fig. 5.

Figs. 10 and 11 are respectively side and end elevations of the'bushings.

Our invention relates to the protector-rod stands, and may be applied to looms thathave otherwise the ordinary lay mechanism.. This is shown in Figs. 1 and 2.

The frame 1 supports the bearing 2 for the crank 3, that drives the lay-sill l through the medium of the pitman 5, journaled to the bracket 6, attached to the sill.

The frame 1 also supports the bearing 7 of the sword 8, on which the sill is mounted. Along the front of the sill runs the protectorrod 9, having the dagger 10, which normally swings idle with the beat of thelay, but which upon the shuttle failing to enter its box is elevated (by well-known means) and strikes the shoulder 11 on the breast-beam 12, stopping the beat till the fault can be remedied. A great deal of wear comes on the protector rod 9, because it is rocked at each beat, and therefore it soon wears loose in its stands. When this has occurred, it is also found that the thrust of the dagger when it strikes the shoulder 11 is apt to spring up the center of the rod and buckle it. Thus from various causes it is frequently necessary to remove and replace the rod; but this necessitates the removal of the stands, at least the end stands, and the loom remains idle for some time, and all the stands must be removed when they be come much worn. To prevent not only the destruction of the stands by wear, but also the ruining of the rod by buckling, and to facilitate the replacing of the worn rods, are the purposes of our invention. It maybe further said that when the rod buckles it fails to arrest the beat of the lay and carries the shuttle into the ridge of the shed, spoiling the piece.

Fig. 5 shows our middle stand. Ithas two bearings, with a space between for the play of the dagger. Instead ofresting the rod in channels in the stand, thereby causing wear upon the stand itself, we slip bushings 13, Figs. 10 and 11, upon the rod and provide in the stand sockets 14:, in which the bushings rest. A cap 15 interlocks with the socket by fitting at the lower edge into a channel 16 in the stand, the lip 16, adjacent to said channel, being formed to overlap the said lower edge and retain the latter in place, as indicated more clearly in Figs. 7 and 9. Through the upper part of the cap and stand is a screwhole 17, through which a screw is turned into the lay-sill. Above the screw-hole 17 the stand has an ofiset 162, which projects over the upper edge of the cap 15. The offset 162 and lip 161 cooperate to secure the cap 15 from movement, and therefore assist in retaining the protector-rod in place. In applying the cap 15 to the stand its lower edge is inserted behind the lip161, then its upper edge is swung in under the offset 162, and

finally the screw is applied in the screw-hole 17, clamping the parts. In its constant vibration the protector-rod exerts force outward and upward. The outward strain is taken and neutralized by the lip 161, while the upward strain is similarly taken and neutralized by the offset 162. Thus no racking action comes on the screw, and the cap cannot work loose. Consequently the bushing is held securely in the stand, but may be instantly released by loosening the screw and disengaging the cap. Further, to prevent longitudinal sliding of the bushing we cast the cap and socket with a rim 18 at each end of the space in which the bushing will lie. We also cast upon the stand two horns 19, be tween which the dagger plays, as shown best in Fig. 2. In Fig. 5 one cap and bushing are removed to disclose the structure of the socket.' From Fig.8 it will be seen that the stand opposite the base of the dagger is concave, so that when the dagger comes against the shoulder on the breast-beam, as before explained, there is a solid backing to receive the thrust in whatever direction the thrust may act, whether exactly horizontal or glancing up or down. Therefore no buckling can take place. As in the usual form of stand, a flange 20 projects beneath the lay-sill, and a bolt passes up through a hole 21 therein to secure the same to the sill. This bolt need not be loosened or disturbed in replacing the bushings or rod. All that need be done is to loosen the cap-screws sufficiently to disengage the caps, when the rod and the bushings thereon may be lifted out, changed, and replaced with but a brief delay of the weaving.

The end stand, Figs. 3 and 4, will be readily understood by the foregoing description, because it is made up of substantially the same parts, but holds a single bushing instead of two. This stand has no flange under the sill, but is secured by a single bolt 22 (see also Fig. 1) and nut 23, passing through the wedge-shaped hole 24 in the stand proper, 25, and cap 26. A mere shoulder 27 projects under the sill. The bushing 28 lies in the socket of the stand and is clamped by the cap exactly as the bushings of the middle stand. To remove the bushing, all thatis necessary is to loosen the nut 23, when the cap may be disengaged.

What we claim as new and of our invention is- 1. The combination with the lay-sill, of a protector-rod stand consisting of a bed formed with a socket to receive the protector-rod and with a lip 161 and offset 162, together With a cap formed with a socket to inclose the protector-rod, an edge engaging with the said lip and held in place thereby, and an opposite edge engaging said offset, and a screw securing said bed and cap together, and also holding the stand to the lay-sill, substantially as described.

2. The combination with the lay-sill, of a protector-rod stand consisting of a bed formed with a socket, with a channel 16, and with a retaining-lip 161 adjacent to the said channel, a bushing located in the said socket, a cap 15 having one edge thereof fitted into the said channel and engaged by the said retaining-lip, the said cap engaging with the bushing to hold the latter in place, and a screw securing said cap in place upon the stand, substantially as described.

3. A protector-rod stand consisting of a bed formed with two sockets with space for the dagger of the rod between them, bushings fitting said sockets, and caps clamping said bushings and means for securing said parts to said bed. 7

1. A protectorrod stand consisting of a bed formed with two separated sockets and with an intermediate portion constituting a backing for the dagger and protector-rod against thrusts received by the dagger, bushings fitting the said sockets, and means to secure said bushings in place in said sockets, substantially as described.

In testimony whereof we have signed our names to this specification, in the presence of two subscribing witnesses, on this 1st day of July, A. D. 1896.

GREEN A. SAWVYER. M. M. LAHUE.

Witnesses:

ALFRED P. BATEMAN, FLORENCE N. STANLEY. 

